Factor.42x2y + 72x3 + 6xy2
A. (18x + 6y)(4x + y)
B. 6(3 + xy)(4 + xy)
C. 6x(3x - y)(4x - y)
D. 6x(3x + y)(4x + y)
Answer: D
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Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 70?
B. 84?
C. 56?
D. 
?
If a problem asks you to “Find a formula . . . “ you might begin by
(a) drawing a sketch of the problem situation. (b) understanding the terms used in the problem. (c) looking for relationships between known quantities and the unknown quantity. (d) making a tables of values, using n as the unknown quantity. (e) trying any one of the above.
Solve the application problem. Round to the nearest cent.
How much should be deposited semiannually into a sinking fund over 5 years to accumulate $159,000 if the money earns 8% compounded semiannually?
A. $9,544.77 B. $13,869.57 C. $13,243.11 D. $27,103.14
Convert to scientific notation.0.00003242
A. 3.242 × 10-5 B. 3.242 × 10-4 C. 3.242 × 104 D. 3.242 × 105